<template>
    <div :class="{'hidden':hidden}" class="pagination-container">
        <el-pagination
                :background="background"
                :current-page="page"
                :page-size="limit"
                :layout="layout"
                :page-sizes="pageSizes"
                :total="total"
                v-bind="$attrs"
                @size-change="handleSizeChange"
                @current-change="handleCurrentChange"
        ></el-pagination>
    </div>
</template>

<script>
import { scrollTo } from '@/utils/scrollTo';

export default {
  name: 'Pagination',
  props: {
    total: {
      required: true,
      type: Number
    },
    page: {
      type: Number,
      default: 1
    },
    limit: {
      type: Number,
      default: 20
    },
    pageSizes: {
      type: Array,
      default() {
        return [10, 20, 30, 50, 100];
      }
    },
    layout: {
      type: String,
      default: 'total, prev, pager, next, jumper'
    },
    background: {
      type: Boolean,
      default: true
    },
    autoScroll: {
      type: Boolean,
      default: true
    },
    hidden: {
      type: Boolean,
      default: false
    }
  },
  methods: {
    handleSizeChange(val) {
      this.$emit('update:limit', val);
      this.$emit('pagination', { page: this.page, limit: val });
      if (this.autoScroll) {
        scrollTo(0, 800);
      }
    },
    handleCurrentChange(val) {
      this.$emit('update:page', val);
      this.$emit('pagination', { page: val, limit: this.limit });
      if (this.autoScroll) {
        scrollTo(0, 800);
      }
    }
  }
};
</script>

<style scoped>
    .pagination-container {
        background: #fff;
        padding: 10px 16px;
        text-align: center;
    }
    .pagination-container.hidden {
        display: none;
    }
</style>
